Ring construction



- Jan. 8, 1924. 1,479,842

J. A. SWEITZER v RING CONSTRUCTION Filed Nov. 15 1922 fi'y. 1 Hg. 2.

awvemto'a Patented Jan. 8, 1924.

UNITED STATES PATENT OFFICE.

JOHN .A. SWEITZER, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO POWERS 8cMAYER MANUFACTURING CORPORATION, OF PROVIDENCE, RHODE ISLAND, A.

CORPORATION OF RHODE ISLAND.

RING CONSTRUCTION.

Application filed November 13, 1922. Serial No. 600,540.

To all whom. it may concern:

Be it known that I, JOHN A. Swnrrznn, a citizen of the United States ofAmerica, residing at Providence, county of Providence,

State of Rhode Island, have invented certain new and useful Improvementsin Ring Constructions, of which the following is a specification.

This invention relates to finger rings and 10 other jewelry, and inparticular to the manufacture and setting of crowns embodying finelypierced designs.

In rings, especially of the more decorative variety, that is thosehaving a crown or head-piece, the design of which comprises fine orlace-like piercings, where the design is applied on the formed crownthere can be no quantity production. My improved method however, inwhich a piercing die is used to produce the design in a piece of flatstock which is subsequently formed into the crown, provides not only forquantity production, but design work that approaches that done by hand.

A particular object of the invention is the production of rings inquantity having very fine fancy pierced designs, which at the presenttime is not feasible without the ultimate use of hand tools whichincreases the cost of manufacture. A further object of the invention isthe production of a crown, first by stamping the design out of a fiatpiece of stock, and then shaping it so that it may be suitably attachedto the shank of the ring or other mounting, barpins, etc.

A further object is to form a ring shank, and also a crown to fit .thesame, each out of a single piece of stock, a part of the shank beingpierced and spread to form a support for the crown. A further object-isto provide a ring, the manufacture of which requires but a singlesoldering operation.

Referring to the accompanying drawing, in which one embodiment of myinvention is illustrated, but to which particular shape and design I donot wish to be limited,

ldig.v 1 is an enlarged side View of the shank of a ring constructed inaccordance with my invention;

Fig. 2 is an enlarged edge view of the shank as seen in Fig. 1;

Fig. 3 is an enlarged top plan view of a piece of flat stock, in whichhas been pierced a fancy design, as by a suitable die;

Flg. 4 is an enlarged side view of the crownand ring shank assembled,the crown comprising the piece of fiat stock illustrated 1n F 1g. 3after the same has been formed to sha e; and

ig. 5 is an enlarged top plan view of the finished crown.

Referring to the drawing in detail, 5 indlcates a ring shank which ispreferably made of one piece of stock and which at its upper portion isspread as at 6 or otherwise formed to produce a base upon which reststhe crown member 7.

In order to form the head or crown member 7, a piece of fiat stock(platinum, for instance) is stamped out by a piercing die having asuitable design and which forms a cen tral setting opening 8. Theresulting product is a flat plate having the desired design piercedtherethrough as in Fig. 3. Then this pierced plate is placed in aforming die which shapes it into any desired conformation, and it isthen soldered to the ring shank at the two points 9.

The blanks can be pierced and formed in quantity and no hand tooling isnecessary. When a die is used for the piercing operation on flat stock,the material can be much thinner and lighter than when the piercing isdone by hand on the crown already shaped, as in the latter case athicker crown material is necessary in order to withstand the ressure ofthe tool, and furthermore by my improvement finer piercing can beaccomplished and hence more beautiful designs produced than hasheretofore been possible in uantity production.

hat I desire to secure by Letters Patent 18 1- I ,;a

-1. The method of forming a ring or the like having an ornamented crownportion which consists in first punching out a flat crown piece to formtherein a pierced design,

crown piece to form therein a pierced design, then shaping the same witha forming die into an arcuate crown or head, and then securing the sameto a ring-shank or the like by a single soldering operation.

1 having an arcuate recess therein, punching a enses crown portion froma piece of flat stock, shaping said crown portion into arcuate form, andsecuring said arcuate crown p rtion in position in said' ring shankrecess.

5. An article of jewelry comprising-a ring- 20 shank having a portionpierced and. spread to form a crown support, and an arcuate crownsecured to Said support. i

6. Jihe method of forming a ring or the like which consists in forming aring shank, piercing and spreadinga part of said shank to form a supportfor a crown, and securing a crown in said support.

JOHN A; swnrrznn.

